Paper-folding machine.



A GEOFF.

PAPER FOLDlNG MACHINE.

APPLICATION HLED APR. 19, I9|5.

1,201,719. Patented 0ct.17,1916.

3 SHEETS-SHEET l- INVE/VTOR Aaron Gro/f.

BY I V6 A. GROFF.

PAPER FOLDING MACHINE.

APPLICATION FILED APR. 19. 1915.

1,201,719. Patented 0m. 17,1910.

3 SHEE I'S-SHEET 2.

r,/ j; 1 AAAAAAAAA v'I/I/)W////I///////////I/m//M//////////III//M///MAw///W/M@ r INVENTOR 52Aaron Groff'.

A. GROFF.

PAPER FOLDING MACHINE.

APPLICATION HLED APR. 19. m5

Patented 00f. 17,1916.

3 SHEETS-SHEET 3- ill/Z12 INVENTOR 4ar'0 n Groff OF IEBURNE, BRITISHCGLUMBIA, CANADA.

OFFICE.

PA Elk FOLDING NACHINE.

To will Hvwm, '15 Hill row viz-i lie it known son of the r llhuriir. him"archin Wern r; a viti- -1r uev-zhl at useful mproves-215*, rhinos Wlion.

ll H inn-el m [the e; em in lmtrh: here a lure are used a (Ulimlllallllwllill. in. work is I u by hand in a suit able manner. ul More tlwiziarhizw, Alllil: is the swirls-er of this spade-ailing is do. good toperturb; 5:; a rapid arm sat/same tori mamu whewlw the err rill may besold to the mteh r wl z=u-uhi;:-, rim. 1:] a

folded form Fla-11; l '1 :w.

The inv ntio 52- pail lhe iolh p-rrzh at nm 'le IE4}illlillliiylilf\\'hieh-- Figure-i is a side i alien i" the marhino oomph-lo" Fig sc-villa: m the hue fl---lr in Fig, ."l. l i is, :m'rll plan of and slalom11-: a section on he hue r in g! I" llw iiimi lnlll H5 ahe ame hrsi luhiblade s hl at 12L (5 in his 3. 1s a saw-l on at in l lo". h 1 mill shamof the so: will as i11l- I l 1p ll as a p n" ml the ."lie or theoperatinquart r will.

lhe hilllt' diwl'ru h partial by iiiiv mar-n ne. sperii w: r We aIHUClIEHli -JH oi" the swoml or bi 12 isn plan showingf lhr liloimposition at lint were? of" the riulr-uuy. l :01 ll:

is a section ul l ii: Fig, 12 and Fig. l4,

:1 swlion of ill!) more on lhw haw f -j m higJQ. 4

The war-lune eoniprlsrs the roiulanation spesiimtion of Let l'ra tent.

Lion file 1 April is, 154 Serial No 22,335.

drawn against the roll by a light coiled spring ll holding the stripagainst the cir- 'r lilli i'l'iintlkll surface of the roll of paper.From the roll 5 the band of paper is passed h- We. feed rollers 12 and13 which are re- ;ly mounted below it. One of these 1"4 l2 in stationarybearings and is d by a chain or band 14 from a shaft 5: x driven bysuitable means from the f: nuztion shaft 16 of the machine. 'T h aringsof the other roller 13 are free to more tmrard the drive roller 12against which it is pressed by light springs 17.

From the feed rollers the paper passes downward between, the cuttingkni-es 18 and 19 and arross a fence plate 25, the depth of whuh platebelow the plane of the knife substa n1 iailv corresponds to the Width ofthe paper. The imiwable knife blade 19 is ag -rm toward the other toeffect the cut by a quick movement cam 20 on the shaft 15, {em- Fig 2)acting through the intervention of a lrrer 21 pirotally mounted at 22.This movement is made against the resistance of 0 spring 33 whichreturns the knife. Betw en the feed rollers and the knife blade thepaper passes between oppositely concaved guards which provideaccommodation for the mnlinumlsl) fed paper Whilethe knife is elating "lhe ieiaie plate 325 has a slightly tapered right angled fold 26 bent init across its llliilliilgl'ill, into which the cut square of paper 5* ispressed by a blade 27 to impose ih first fold. as indicated by m andshown in Fig. 1'. This first fold blade is secured, as shown in lfigs. 2and 4, to a base member whi h is slidable in guides 29. The blade isproforma] into the fold 26 of the fence by a. quirk action cam 30 on theshaft 16 acting: through the intervention of'a lever til pivoted at 32and connected to the slidable base nienil er SBQL and withdrawn from thefold by 'a spring 3-1. wilhdrawal of the blade require tq-fbequicklyperformed, that the blade maybe 01111 of the way of thenextsquare of papegl-ao it is delivered from the feed rollers. 5

28 of the bladeby a rod/- The l'eneo fold 26 has a Slot 35acrossiiii'iit the middle. into which slot the: half folded se1'\ iette,which hasbeenleft imthe fold V is pressed to impose tie garter fold plu-fiblade 36, and after fol lug-the 'qliazr-teij folded serriette iscarried by the same blade 36 which imposed the fold along the exten gsion of the slot to a triangular slot 37 hereinafter referred to wherethe final folds are imparted.

The blade 36 by wh ch the quarter fold a, as illustrated in Fig. 8 isimposed is eudwise, projected into the slot 35, is earrierl length--wise of that slot to the location 37, and is endwise uithdrawn at thatplace by the following means: Each hlatle fi l is seenred on a stud 3P5projeeting from the: center of a square (lie lJlUCk 35), the squaresides of which are respectively"parallel and at right angles to theleading edge of the blade se cured to it and has a square neck ill thefaces of which are disposed diagonally to the square of the die. Thehlade is secured. on the stud by a nut and is retained with its leadingedge parallel to one side of the die by a steady pin--ll lilting aeonesponih ing aperture in the blade. A series ol these (lies With theirblades 36 attached, are mounted in a rectangular slideway l2 whieh ishorizontally disposed parallel to the plane of the slot 35. The cornersof this slid ivray are square 50 that the dies may travel along itssides and ends and maintain the leading edges of the blades alwaysparallel. The dies are moved along the slideua by an endless chain 4;taking around eorner sheaves ll rotatably mounted in the supportingframe beneath the slideway. ()ne of these sheaves 44 is a sprmket wheeland mounted on a shaft 46 which is; driven by bevel gears 47 from ashaft IS driven by a rhain or hand 49 from the lirsl motion shalt ll? ofthe machine.

Each die 39 with its blade tlll is moved along the reetang'ula rslidrwav hv a member 50, see, Figs. 12 and lil. whirh is wrured to alink of the chain and is bent around the outer edge of the slidewa v tornggnjie the after rorner of the square nerl; ll) of the die Forconvenience ol' ronsiruelion this lllt'illlrl' fill ma be made in twopier-es. as show n. As the contacting corner of lhe squaie nerl; isubject to wear and requires to he nieel) adjusted adjusting pier-es 51may he seeured lo the sides of the square as shown in Fig. ll.

To avoid ranting ol' the die while its driv ing member serured to herhain is turning around the rorner sheav vs. a hfjhl spring: 52 issecured in a reeess in the bottom of lhr slidewav to projeet its squarel'rre e lg slightly above the bottom of the slidenai in alinenient withthe inner sid ol' ihe next side of the rectangle i\s the die approae esthe corner of the slidewav il depresses the sprint: and when llndierearln-s tin eorner the square edge springs up and rrlulns [he die inalinement 'llll the n \l rd'll ol' the rel-tangle while the vhninallarhed member fill is turning: around the quarterriwleol'the sheaves.With [his nlerhauisnl enrh hhule Elli. as its die run-hrs the outereorner ol [he rerlaugular slhll!\\':l whirh is toward the fold of thell-nee plate is projected endwise into the eross slot 33 and when thedie real-hes the eorner of the rel-tangle whieh is adjacent the. told 26it travels along that sid (it the slideway which is :nliarenl' the slot3 and carries the half folded servietle along the slot 255 to the otherend of that slot where at 3-5? the remaining angular folds w. as shownin Figs El and I I respectively. are imposed on the errvietle. At thisphn-e an angular noteh I of .ipproxinniteiv thirty degrees is remoredfrom the rover plate and base plate of the slot 35. the axis ol theangle forming a forty-live degree angle with the line 01 travel, or withthe end ol' the slot.

Pivotally mounted at 3-; and El below the plane of the slot 35triangular blades 55 and 513 are mounted to move across the triangularnoteh ST in planes that are parallel lo that of $3 The pivot pins filland ."il of these lilades have short levers ST and h seenred on then]and the ends of these levers are connected by rods 59 to the ends oflevers no mounted on pirot pins til. the other ends of whieh levers areaeted upon in parallel planes by quirk nmveinenl rains l3! seeured onthe first motion shall ll. By this merlp auisn: the triangular bladesare. one a little in adrunre of the olheix moved aeross the notch JJTbelow the plane of the slot J55.

ln alineinent with the axis of the angular nolrh 3T a ineniher I35 ismounted in a slidewa on to move axially into and out of the triangularnotrh I37, and in the outer end of the slidahle member (if) a presserplate 67 is hing d at 65, the free'end of whi h presser plate is shapedto eontorni to the triangular n l h ll. The slidahle member 433 isprojerled into and withdrawn from the noteh ll? h v a lever Tl pivotedat 1'2 and eonneeted by a York or slotted end to a pin T3 in the frontend of the slidahle inendler (35. This h-ver 71 has a small roller on apin T hwhirh roller proiwls into the fare groove of a rain r51! seenredon a shalt T l whieh is driven by a lloolts joint T5 from a shaft Twhieh again is driven at the required rate of speed In a rhain TT fromthe first motion shaft lfl. "l'he g -roove ol the ram llll has aeourentrie portion that will allord the press-er plate 37 a period oirest, while it is within the notr'h HT and the triangular blades 55 and56 are l ohlin the opposite l'ol'liel's ol' the ([Hzll'tll' l'oldeilserviellr over it.

The hinged presser plate 37 has an adiuslahl'e r-ipring'Tl'w' whiehtends to hold it in the plane of its movement, and it is lifted againstthe resislanee of this spring to the angular position, as shown in Fig.5 by a roll r on the end of a short lever T pivoted at h to theslidahhmember 671, the lower end of whim-h lever projects downward sothat at the outward limit of the movement of the slillable member itengages a corner of the frame of the ma hine, as shown in full lines inFig, 5, to lift the presser plate. The pivot is so arranged in relationto th contact of the roller on the lever on tluunderside of the presserplate that the plankis stably supported until the lever is forciblythrown down by the lower end oi the le er engaging a PI'UJQCtiOH 81 atthe inner limit of the presscr plutes movement. When the quarter foldedserviette has reached the lo cation of the notch 31 and the blade 3"which folded and carried it there is withdrawn, the resser )late 67,angled upwnnl, as shown by the full lines, is projected into the notch37 the lower end of the lever 7! engages the projection 81 and is throwndown, and the presser plate drops under the action of its spring 78 andits own weight 'onto the quarter folded serviette and presses it belowthe lever of the triangular blades and 56 folding the corners upward, asshown by the arrows in Fig. 9. 'lhese blades .55 and 56 are then movedacross the notch 37 and fold the corner pieces over the cen tralportion, as in Fig. 10. The presser plate is then withdrawn and theoperation of folding is completed.

Just below the level of the plane of more ment of the triangular bladesand 5t; :1 light spring 83 projects outward lmyond each side of thenotch 37 below which springs the preer plate (37 presses the Folded seriette so that they are prevented from rising to interfere with thesucceeding serviettes. The folded shviettes are pressed by thesucceeding ones into a chute 82 which islcu'rved upward to deliver themwhere they may be bound in bundles for packing.

Although specifically described as impos ing the folds illustrated inFigs. 7, 8, 9 and 10 the mechanism may be arranged to told themdifferently if so required. Thus the first fold, instead of beingparallel to the sides of'the squareof paper, may be dingo nal therewithand the second fold at right on les to the first.

,do not desire to confined to the exact nsti'uction of the machine or ofthe mecha- 'nisrn 'for operating the several folding;

blades, or other moving parts, but claim ad y flmreans described forimposing the required folds one paper serviette.

Having now particularly described my invention, I hereby declare thatwhat I claim as new and desire to be protected. in by Let ters Patent,is:

1.111 a machine for folding paper, the comblnati'oh with a plane fencehaving an elongated pocket which is provided with an opening or slot, areciprocating blade for foldin' the paper sheet through the slot to t eocket, said pocket having a slot rough t e same in a plane at right anles to the plane of the pocket, a movable fol ing de, means fonpnssingsaid folding blade nwilinearly eniinise into and bodily edge misc al ngihznugh said pocket slot to of- I m-t a second fold in the folded sheetof pugwi' and carry the piper along, and means For nminiuiuing: Mtlilblwla' to more bodily along llllhllflll solid, slot with its paper en-;,{:|,',fl!lj edge normal to the line of movement.

2. A machine for fold ng; paper, the coin ninatnm with a plum l vlu'having an clongulvil pocket provided moi an opening or sl t, ui'cri;uocutbu: lilullc lor folding the paper short through the slot intothe pocket sold pocket lowing a slot through the sumo in a plane atright angles to the plane of the wi ket, n .tni-'li|-e :thanally movablefolding blade, means; for passing said folding blade through i-lllllgsurlwl, slot to effect n second f ld in the folded slim-l. of paper andcan the pups! alone: as niilmsuy.along whirl: and paprr i with, ittriangular blade for holding! sold mpe when it ar rives at npredcin'u:mmi plum and other folding blades coii wrntiw with said holdlop; blade to e-fl'ert the heal folds of the sheet.

A machine for folding: paper, eompris in]; the combination of :1 planefence having; a slot 2: use its midd e and walls extending linelumrdlyfrom tin edges of the slot at right angles to the Face of the ten-re,the Walls of said. slot ha ing: :1 sloi. across the middle of then: atright angles to said walls and to the plnne of the him, said second slotwalls having 3 walls projecting at right angles thereto :idjuernt to thesides of the slot, means for feeding 2 sheet of pupcr onto the face ofthe fence. a blade edgewise movable into the slot of the fence, meansfor end wise mowing the blade to carry the paper into its slot and foldit in halves, :1 plurality of uni-(iiiwvtiouully movable blades andmeans for infecting the travel of said blades into said second slotacross the walls of the first slot to carry into said second slot thehalf folded sheets of papers to impose a quarter foldin the same,substantially as shown and ascribed.

4, A machine for folding paper, comprising the combination with a planefence, of means for feeding l1 sheet of piiper to it, means forinmosiugz :1 half told and a quurter fold upon the short, means 'forfolding the outer angular portions of the quarter folded. sheet over thecentral portion, said means ooi'nprising the combinutimi with a slottedbody into which the quarter folded sheet of paper is-delive red, saidslotted body having a triangular notch removed from its upper and lowersides corresponding approximately to the form of thefolded paperrequired, a triangular folding blade pivotally mounted on each side ofthe notch and ad acent the apex, said blades inovable across the notchin planes parallel and adjacent the plane of the slot, at Presser bladeshaped to ion ('(Hlltll'lll to the noteh nmvahle lHll'lv' and forth intoand from it. means for lifting the presser blade at the outer limit ofits movement above the plane ol the paper in the slot. means fordepressing the presser ldade at the inner limit of its movement to rarrv the middle portion of the. quarter l'olded sheet helow the plane ofthe angular folding hlades, and means for moving the angular foldinghlades aeross the middle portion of the quartet folded paper to fold theouter angular portions of it over the middle. portion.

A machine for folding; paper comprising the eomhination with a planefem-e having a first fold slot across its middle. of walls extendinglmekwardlv from the edges of said slot, said walls having a seeond 'lnhl slot across the middle. and walls extending ll'UllI the edges ofsaid serond l'uld slot. said last named walls having an angular noteh orreeess. the axis of whieh is at approximately 1.. from the end of theslot walls farthest from said seeond i'old slot. means for rigidlysupporting. a roll ot' paper over the plane l'enre. means for cutting asheet. of paper from the roll when it is on the plane of the l'enee. afirst fold hlade slidahly mounted-to move toward the plane t'enee intothe slot thereof. means for projeetint and \vitlulrawilrg said hlade. asecond hlade movahle through the slot in the hm-lnvardlv extended walls.means for operating said last named hlade to earr the initially t'oldedsheet into the second fold slot and to transfer it to the end of theseeond fold slot walls. a presser hlade movahle back and forth into saidangular noteh or recess, means for depressing said presser hlade at theinner limit of its mmement helow the plane of the slot. aml means forfolding the outer corners of the quarter folded sheet over the edges ofthe presser hlade, means for withdrawing said presser blade, and meansfor elevating the same at the outer limit of its movement.

(3. A machine for folding paper. comprising the combination with a planet'enee havint a slot neroSs its middle and walls extending from theedges of the slot at right angles to the plane of the i'enee. of meansfor delivering a sheet; of paper aeross the plane of.t.he t'enee. a,blade. for folding the shee through said fem-e slot to projeet hetive nsaid wallsasaid walls having a tl'ausuu'se slot. a paper folding, hlademovahle through said transverse slot. means for prop-etur: said hladeinto said transverse slot moviug It through it and witlalrawing ittheret'rom, said means romprisine' a plate frame paral lel to aidadjaoent said transverse slohesaid plate having, a groove in it formedas a vet-tangle, a square dlo movahle in the rev" tanglular groove onwhieh die the last named a U blade is secured, an endless eham movahlear .ml a rectangle similar to that, of the groove and in a parallelplane, and means secured to the chain and projecting from it to engagethe die and entry it around the groove.

7. r\ marhine for folding paper. eompris ing the eomhination with aplane fem-e hav ing: a slot aeross its middle and walls extendin g fromthe edges of the slot at right angles to the plane of the fence, ofmeans for delivering a sheet of paper aeross the plane of the fence. ablade for folding the sheet through said t'enre slot to projeet hetaeensaid walls. said walls having a trarrs ver e slot, a paper folding hlademovable through said transverse slot, means for projeetingi said hlndeinto said transverse slot. moving it through it and \vithdrawimg itlherel'rom. said means comprising. a plate frame parallel to andadjaeent said trans- \erse slot. said plate having a groove in it formedas a reetangle. a square die movable l'l the rertangula' groove on \vhih di" the last named hlade is secured. means for reetil'ying the die ateaeh eoruer of the reetaugular groove. said means eomprisint! a springreeessed into the hottom wall of the groove and projeeting slightlytheremto with its free edge in alinement nith the adjacent side of thereetaneular groove, an endless ehain movahle around a reetangle similarto that of the groove and movable in a parallel plane. and mean seemedto the ehain to engage the die and arr v it around the groove.

o. i\ maehine for folding paper, comprisin the eomhination with a planefence havin a slot aeross its middle and alls extend inn from the edgesof the slot at right; angles to the plane of the fence, of means for dlivering a sheet of paper across the plane of the t'enee. a hlade forfolding the sheet; through said fem-e slot to project between said\valls. said walls having a transverse slot. a paper folding hlademovahle through said transverse slot. means for projeeting said hladeinto .said transverse slot. moving it through it and withdrawing ittherefrom. said means eomprisingi a plate frame seeured to the frame ofthe maehine in a plane, para lel to and adjaeent said transverse slot.said plate having a groov e in it formed as a reetangrle. a square dieniovahle in the rel-tangle lar groove on whieh die the last named hladeis seeured. an endless ehain mounted on emner sheaves to move around arut-tangle similar to that ol the groin e and in a plane par-- al el toit. meaus'seeun-d to the ehain for engaging the die and moving; itaround the reel lar groove. and means for driving the ehain J. inuhinefor l'wlding paper. eomprisin the m lllillztllvll with a plane t' nee.havsiding l'rmu the edges of the slot at light.

angles to the plane of the fence, of means for delivering a sheet ofpaper across the plane of the fence, :1 blade for folding the sheetthrough said fence slot to project be- 5 tween said Walls, said wallshaving a transverse slot, a paper folding blade movable through saidtransverse slot, means for projecting said blade into said transverseslot, moving it through it and withdrawing it therefrom, said meanscomprising a plate frame secured to the frame of the machine ina planeparallel to and adjacent said transverse slot, said plate having agroove in it formed as a rectangle, a square die movable in therectangular groove, said die having a square shoulder the sides of whichare dis osed diagonally in relation to the sides 0 the die on the upperside of which the last named blade is secured, an endless chain mountedon corner sheaves to move around a rectangle similar to that of thegroove and in a plane parallel to it, means secured to the chain andprojecting across the groove to engage a corner of the square 25shoulder of the die, and means for driving the chain.

10. In a paper folding machine, a slotted folding member, means forprojecting a paper folding blade into said slotted folding member,carrying it through the slot into which the paper is folded, andwithdrawing it therefrom, said means comprising the combination With aplate having a. groove in its surface disposed as a rectangle in a 3plane parallel to that of the slot, a "chain movable. in a parallelplane around a similar rectangle, a square die fitting the groove saiddie having a square projection from it the sides of said projection beindis osed diagonally in relation to the si es 0 the groove fittingportion of the die, a fittin strip adjilstably secured on each diagonaside of the die projection, and a driving plate secured to the chain andprojectin across the groove to engage the corners o the fitting strips.

11. In a paper folding machine, the comhiuation with a fence having aslot across the same and parallel walls forming a pocket in back of saidslot, of means for delivering paper from a roll onto said fence, meansfor cutting said paper delivered from the roll to the fence, areciprocating blade for initially folding the paper through said slotinto said pocket, said pocket forming \valls ha ring transverse aliningslots, other walls registering with said alining slots for receiving thepaper when folded the second time, uni-directionally movable foldingfingcrs passing through said pocket slots to rilrct a second fold in thesheet and carry the sheet along between said second mentioncd walls,means for endwise withdrawing said fingers from the folded sheet, aholding member for engaging the folded sheet when it arrives at thelimit of its movement under the influence of said fingers and otherfolding devices cooperating with said holding member for effecting thefinal folds of the paper.

in testimony whereof I aflix my signature in presence of two witnesses.

' AARON GROFF.

Witnesses:

Rowmxn BRXTTAIN, MAY \Vni'iu.

